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Table 2 Summary of bednet density measures and estimates of the effect of bednet measures on child mortality, adjusted by sex, socio-economic status and distance to the nearest health facility

From: Spatial effects of mosquito bednets on child mortality

Bednet density

Mean (St. dev.)

% of households without bednets

IRRa

95% CI

LRTb

P-valuec

R 0

0.25 (0.15)

0.00

0.53

(0.29,0.97)

4.37

0.037

R 50

0.18 (0.20)

0.09

0.64

(0.40,1.03)

3.48

0.062

R 100

0.24 (0.18)

12.68

1.13

(0.73,1.74)

0.27

0.607

R 150

0.25 (0.13)

13.84

1.18

(0.61,2.30)

0.24

0.623

R 200

0.26 (0.12)

14.44

1.69

(0.79,3.61)

1.79

0.181

R 300

0.26 (0.09)

15.04

2.51

(0.96,6.55)

3.46

0.063

R 400

0.27 (0.08)

15.04

2.10

(0.79,5.59)

2.05

0.153

R 500

0.27 (0.07)

15.18

2.40

(0.70,8.25)

1.89

0.169

R 600

0.27 (0.07)

15.23

2.89

(0.74,11.25)

2.32

0.128

  1. Results obtained by fitting negative binomial models.
  2. a: IRR:Incidence-rate ratios.
  3. b: LRT:Likelihood ratio test.
  4. c: P -value based on likelihood ratio test (LRT).